diff --git a/src/core/qtwebengine_sources.gni b/src/core/qtwebengine_sources.gni
index ea18dad97501ecc120591f01ff8596e46e2bd8a4..b1361e7277cafda60f6be4e28f0ff2fe2ce7587d 100644
--- a/src/core/qtwebengine_sources.gni
+++ b/src/core/qtwebengine_sources.gni
@@ -44,6 +44,7 @@ source_set("qtwebengine_sources") {
     "//chrome/common:buildflags",
     "//components/nacl/common:buildflags",
     "//extensions/buildflags:buildflags",
+    "//third_party/blink/public/mojom:mojom_platform",
   ]
   sources = [
     "//chrome/common/custom_handlers/protocol_handler.cc",